Hayden Schiff
2013-10-25
AP Computer Science Bell 1
Ch. 5 book questions



>>>> SHORT ANSWER <<<<

>> 5.1 <<
hello 
hello there 


>> 5.3 <<
A static method is called on the class rather than on an instance, so the instance
variables do not have values when you call a static method.


>> 5.5 <<
public interface Visible {
	public boolean makeVisible();
	public boolean makeInvisible();
}

Classes could implement this interface by having a boolean "visible" that is set to true
by the former method and to false by the latter method.


>> 5.7 <<
[N.B. Because I'm doing this work on a tablet, I used multiple spaces in the place of each tab character] The output of the given code:
Before changing the values:
f1      f2      f3
27      38      49

After changing the values:
f1      f2      f3
999     888     777

anInteger: 27
aNum: 888
anotherNum: 49



>>>> MULTIPLE CHOICE <<<<

5.1: D
5.2: B
5.3: B
5.4: A
5.5: E
5.6: A